The pathogenic abilities of T. gamsii YIM PH30019was estimated with 1-y-old healthy P. notoginseng in greenhouse tests. Three P. notoginseng seedlings were planted in pots with the size of 10 L (0.6 * 0.5 * 0.125 m, L/W/H) containing 6 L sterilized soil. Spores of T. gamsii YIM PH30019 were collected from the PDA plates. A 0.2 mL spore solution (1*1012) of T. gamsii YIM PH30019 was applied to the soil around roots. The treatment without inoculation with YIM PH30019was set as control. Six replications were used for treatment and control. The pots were incubated at 25◦C for 2 mo, and P. notoginseng plants were collected to check the virulence of YIM PH30019.